Records |
Author |
Groat, L.A.; Kek, S.; Bismayer, U.; Schmidt, C.; Krane, H.G.; Meyer, H.; Nistor, L.; Van Tendeloo, G. |
Title |
A synchrotron radiation, HRTEM, X-ray powder diffraction, and Raman spectroscopic study of malayaite, CaSnSiO5 |
Type |
A1 Journal article |
Year |
1996 |
Publication |
The American mineralogist |
Abbreviated Journal |
Am Mineral |
Volume |
81 |
Issue |
5/6 |
Pages |
595-602 |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
Abstract |
Synchrotron radiation, high-resolution transmission electron microscopy (HRTEM), X-ray powder diffraction, and Raman spectroscopy were used to study the structure and thermal behavior of malayaite, CaSnSiO5. No indications of deviation from A2/a symmetry and no structural transitions were observed between 100 and 870 K. HRTEM revealed that the material is free of domains and antiphase boundaries. However, the lattice constants, cell volume, and Raman-active phonons show a thermal discontinuity near 500 K, which is possibly related to variation of the coordination sphere around the highly anisotropic Ca position. |
Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
Washington, D.C. |
Editor |
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Language |
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Wos |
A1996UP41100006 |
Publication Date |
0000-00-00 |
Series Editor |
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Series Title |
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Abbreviated Series Title ![sorted by Abbreviated Series Title field, ascending order (up)](img/sort_asc.gif) |
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Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
0003-004x |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
1.964 |
Times cited |
19 |
Open Access |
|
Notes |
|
Approved |
no |
Call Number |
UA @ lucian @ c:irua:16862 |
Serial |
3407 |
Permanent link to this record |
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|
|
Author |
Batuk, D.; Batuk, M.; Abakumov, A.M.; Hadermann, J. |
Title |
Synergy between transmission electron microscopy and powder diffraction : application to modulated structures |
Type |
A1 Journal article |
Year |
2015 |
Publication |
Acta crystallographica: section B: structural science |
Abbreviated Journal |
Acta Crystallogr B |
Volume |
71 |
Issue |
71 |
Pages |
127-143 |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
Abstract |
The crystal structure solution of modulated compounds is often very challenging, even using the well established methodology of single-crystal X-ray crystallography. This task becomes even more difficult for materials that cannot be prepared in a single-crystal form, so that only polycrystalline powders are available. This paper illustrates that the combined application of transmission electron microscopy (TEM) and powder diffraction is a possible solution to the problem. Using examples of anion-deficient perovskites modulated by periodic crystallographic shear planes, it is demonstrated what kind of local structural information can be obtained using various TEM techniques and how this information can be implemented in the crystal structure refinement against the powder diffraction data. The following TEM methods are discussed: electron diffraction (selected area electron diffraction, precession electron diffraction), imaging (conventional high-resolution TEM imaging, high-angle annular dark-field and annular bright-field scanning transmission electron microscopy) and state-of-the-art spectroscopic techniques (atomic resolution mapping using energy-dispersive X-ray analysis and electron energy loss spectroscopy). |
Address |
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Corporate Author |
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Thesis |
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Publisher |
|
Place of Publication |
Copenhagen |
Editor |
|
Language |
|
Wos |
000352166500002 |
Publication Date |
2015-04-01 |
Series Editor |
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Series Title |
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Abbreviated Series Title ![sorted by Abbreviated Series Title field, ascending order (up)](img/sort_asc.gif) |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
2052-5206; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.032 |
Times cited |
11 |
Open Access |
|
Notes |
Fwo G039211n |
Approved |
Most recent IF: 2.032; 2015 IF: NA |
Call Number |
c:irua:124411 |
Serial |
3408 |
Permanent link to this record |
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|
|
Author |
Lin, K.; Pescarmona, P.P.; Vandepitte, H.; Liang, D.; Van Tendeloo, G.; Jacobs, P.A. |
Title |
Synthesis and catalytic activity of Ti-MCM-41 nanoparticles with highly active titanium sites |
Type |
A1 Journal article |
Year |
2008 |
Publication |
Journal of catalysis |
Abbreviated Journal |
J Catal |
Volume |
254 |
Issue |
1 |
Pages |
64-70 |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
Abstract |
Ti-MCM-41 nanoparticles 80-160 nm in diameter (Ti-MCM-41 NP) were successfully prepared by a dilute solution route in sodium hydroxide medium at ambient temperature. Ti-MCM-41 NP were characterized by X-ray diffraction, nitrogen adsorption/desorption isotherms, SEM, TEM. FT-IR, and UV-vis spectroscopy. The characterization results showed the existence of highly ordered hexagonal mesoporous structure and tetrahedral Ti species in Ti-MCM-41 NP. In the epoxidation of cyclohexene with aqueous H2O2, Ti-MCM-41 NP displayed higher conversion and initial reaction rate than a Ti-MCM-41 sample with normal particle size (Ti-MCM-41 LP). Diffusion of the reactants was accelerated and the accessibility to the catalytic Ti species was enhanced in the shorter channels in Ti-MCM-41 NP samples. Ti-MCM-41 NP showed much higher selectivity for cyclohexene oxide compared with Ti-MCM-41 LP, suggesting reduced hydrolysis of cyclohexene oxide with water in the former case. The increased selectivity for cyclohexene oxide can be attributed to the lower concentration of residual surface silanols in Ti-MCM-41 NP and the shorter residence time of epoxide in the shorter mesoporous channels. Ti-MCM-41 NP also appears to be a suitable catalyst in the epoxidation of a bulky substrate, like cholesterol, with tert-butyl hydroperoxide. (c) 2007 Elsevier Inc. All rights reserved. |
Address |
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Corporate Author |
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Thesis |
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Publisher |
|
Place of Publication |
San Diego, Calif. |
Editor |
|
Language |
|
Wos |
000253646100006 |
Publication Date |
2008-01-30 |
Series Editor |
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Series Title |
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Abbreviated Series Title ![sorted by Abbreviated Series Title field, ascending order (up)](img/sort_asc.gif) |
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Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
0021-9517; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
6.844 |
Times cited |
52 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 6.844; 2008 IF: 5.167 |
Call Number |
UA @ lucian @ c:irua:103092 |
Serial |
3409 |
Permanent link to this record |
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|
|
Author |
Esquivel, M.R.; Zelaya, E. |
Title |
Synthesis and characterisation of lanthanide-based dioxide |
Type |
A1 Journal article |
Year |
2011 |
Publication |
Advances in applied ceramics |
Abbreviated Journal |
Adv Appl Ceram |
Volume |
110 |
Issue |
4 |
Pages |
219-224 |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
Abstract |
In the present work, the microstructure and structure of La(0.25)Ce(0.52)Nd(0.17)Pr(0.06)(OH)(3) and La(0.25)Ce(0.52)Nd(0.17)Pr(0.06)O(2) is obtained from transmission electron microscopy and X-ray diffraction measurements. Space group P6(3)/m is assigned to the structure of La(0.25)Ce(0.52)Nd(0.17)Pr(0.06)(OH)(3). Lanthanides are assigned to Wyckoff positions 2c. Cell parameters are a=6.375(5) angstrom and c=3.753(5) angstrom. The thermal decomposition of this compound was studied by differential scanning calorimetry. The process is exothermal with an enthalpy change Delta H degrees value of -254 +/- 10 kJ mol(-1). The decomposition kinetics is complex and two global processes with E(a) values of 98 +/- 4 and 61 +/- 2 kJ mol 21 were observed. The product is a lanthanide dioxide. Space group Fm3m is assigned to the La(0.25)Ce(0.52)Nd(0.17)Pr(0.06)O(2). Lanthanides are distributed in Wyckoff positions 4a. The cell parameter is a=5.479(5) angstrom. Nanopores in the oxide surface are obtained using this method and characterised by STEM measurements. |
Address |
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Corporate Author |
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Thesis |
|
Publisher |
|
Place of Publication |
Leeds |
Editor |
|
Language |
|
Wos |
000291206700006 |
Publication Date |
2011-05-30 |
Series Editor |
|
Series Title |
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Abbreviated Series Title ![sorted by Abbreviated Series Title field, ascending order (up)](img/sort_asc.gif) |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
1743-6753;1743-6761; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
1.325 |
Times cited |
3 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 1.325; 2011 IF: 0.871 |
Call Number |
UA @ lucian @ c:irua:105588 |
Serial |
3410 |
Permanent link to this record |
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|
|
Author |
Huang, W.; Zhang, X.-B.; Tu, J.; Kong, F.; Ning, Y.; Xu, J.; Van Tendeloo, G. |
Title |
Synthesis and characterization of graphite nanofibers deposited on nickel foams |
Type |
A1 Journal article |
Year |
2002 |
Publication |
Physical chemistry, chemical physics |
Abbreviated Journal |
Phys Chem Chem Phys |
Volume |
4 |
Issue |
21 |
Pages |
5325-5329 |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
Abstract |
Nickel foams were used as catalysts to dissociate acetylene and deposit carbon atoms. Graphite nanofibers with distinct structures were developed at 550degreesC with nickel foams pretreated with hydrogen. HREM observations showed that the graphite layers of the nanofibers were aligned at a certain angle to the fiber axis. It is suggested that hydrogen treatment and metal catalysts have a tremendous impact on the yields and microstructures of the graphite nanofibers. The growth mechanism of these fish-bone graphite nanofibers is also discussed. |
Address |
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Corporate Author |
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Thesis |
|
Publisher |
|
Place of Publication |
Cambridge |
Editor |
|
Language |
|
Wos |
000178635300016 |
Publication Date |
2002-10-17 |
Series Editor |
|
Series Title |
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Abbreviated Series Title ![sorted by Abbreviated Series Title field, ascending order (up)](img/sort_asc.gif) |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
1463-9076;1463-9084; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
4.123 |
Times cited |
20 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 4.123; 2002 IF: 1.838 |
Call Number |
UA @ lucian @ c:irua:94938 |
Serial |
3411 |
Permanent link to this record |
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|
|
Author |
Hervieu, M.; Van Tendeloo, G.; Michel, C.; Martin, C.; Maignan, A.; Raveau, B. |
Title |
Synthesis and characterization of mercury based “1222” cuprates (Hg1-xMx)(Sr,Ba)2Pr2Cu2O9-\delta (M = Pr, Pb, Bi, Tl) |
Type |
A1 Journal article |
Year |
1995 |
Publication |
Journal of solid state chemistry |
Abbreviated Journal |
J Solid State Chem |
Volume |
115 |
Issue |
|
Pages |
525-531 |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
Abstract |
Five new layered cuprates, with a 1222-type structure, have been synthesized according to the formula (Hg(1-x)M(x))(Sr,Ba)(2) Pr2Cu2O9-delta with M = Pr, Pb, Pi, and Tl. They crystallize in a tetragonal cell with a approximate to a(p) and c approximate to 29.5 Angstrom; their structure consists in a triple intergrowth of oxygen-deficient perovskite, rock-salt-and fluorite-type layers. They are characterized by a mixed [Hg(1-x)M(x)O(1-delta)] layer in the rock-sail-type slice. The ED and HREM studies show that Tl, Bi, and Pb are statistically distributed in the mixed [Hg(1-x)M(x)O(1-delta)] layer, contrary to Pr which involves an ordering phenomenon along a. Different stacking defects are observed and discussed as well as the cleavage mode of the crystals. (C) 1995 Academic Press, Inc. |
Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
London |
Editor |
|
Language |
|
Wos |
A1995QN27700033 |
Publication Date |
2002-10-07 |
Series Editor |
|
Series Title |
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Abbreviated Series Title ![sorted by Abbreviated Series Title field, ascending order (up)](img/sort_asc.gif) |
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Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
0022-4596; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.133 |
Times cited |
5 |
Open Access |
|
Notes |
|
Approved |
MATERIALS SCIENCE, MULTIDISCIPLINARY 135/271 Q2 # PHYSICS, APPLIED 70/145 Q2 # PHYSICS, CONDENSED MATTER 40/67 Q3 # |
Call Number |
UA @ lucian @ c:irua:13311 |
Serial |
3412 |
Permanent link to this record |
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|
|
Author |
Gagea, B.C.; Liang, D.; Van Tendeloo, G.; Martens, J.A.; Jacobs, P.A. |
Title |
Synthesis and characterization of nanocrystal zeolite/mesoporous matrix composite material |
Type |
P1 Proceeding |
Year |
2006 |
Publication |
Studies in surface science and catalysis |
Abbreviated Journal |
|
Volume |
162 |
Issue |
|
Pages |
259-266 |
Keywords |
P1 Proceeding; Electron microscopy for materials research (EMAT) |
Abstract |
|
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
Amsterdam |
Editor |
|
Language |
|
Wos |
000283580900033 |
Publication Date |
2007-09-07 |
Series Editor |
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Series Title |
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Abbreviated Series Title ![sorted by Abbreviated Series Title field, ascending order (up)](img/sort_asc.gif) |
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Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
0167-2991; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
|
Times cited |
8 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: NA |
Call Number |
UA @ lucian @ c:irua:99275 |
Serial |
3413 |
Permanent link to this record |
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|
|
Author |
Pshirkov, J.S.; Kazakov, S.M.; Abakumov, A.M.; Putilin, S.N.; Antipov, E.V.; Bougerol-Chaillout, C.; Lebedev, O.I.; Van Tendeloo, G. |
Title |
Synthesis and characterization of new phases: Sr3.75K1.75Bi3O12 and Sr3.1Na2.9Bi3O12 |
Type |
A1 Journal article |
Year |
2000 |
Publication |
Journal of solid state chemistry |
Abbreviated Journal |
J Solid State Chem |
Volume |
152 |
Issue |
2 |
Pages |
492-502 |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
Abstract |
|
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
London |
Editor |
|
Language |
|
Wos |
000088056400025 |
Publication Date |
2002-09-18 |
Series Editor |
|
Series Title |
|
Abbreviated Series Title ![sorted by Abbreviated Series Title field, ascending order (up)](img/sort_asc.gif) |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
0022-4596; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.299 |
Times cited |
2 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.299; 2000 IF: 1.527 |
Call Number |
UA @ lucian @ c:irua:54706 |
Serial |
3414 |
Permanent link to this record |
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|
|
Author |
Lomakov, M.V.; Istomin, S.Y.; Abakumov, A.M.; Van Tendeloo, G.; Antipov, E.V. |
Title |
Synthesis and characterization of oxygen-deficient oxides BaCo1-xYxO3-y' x = 0.15, 0.25 and 0.33, with the perovskite structure |
Type |
A1 Journal article |
Year |
2008 |
Publication |
Solid state ionics |
Abbreviated Journal |
Solid State Ionics |
Volume |
179 |
Issue |
33/34 |
Pages |
1885-1889 |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
Abstract |
Oxygen-deficient complex cobalt oxides BaCo1 − xYxO3 − y, = 0.15, 0.25 and 0.33, with a cubic perovskite structure have been synthesized in air at 1100 °C using a citrate route. Cation composition of the compounds was confirmed by energy-dispersed X-ray (EDX) microanalysis while oxygen content was determined by iodometric titration. An electron diffraction (ED) study of the x = 0.25 and 0.33 compositions show the presence of a diffuse intensity, indicating possible short-range ordering of the B cations. It was found that the treatment of BaCo0.75Y0.25O2.55 in a humid atmosphere leads to the absorption of water vapour at the first stage. Oxygen permeation studies of the ceramic membranes of BaCo0.75Y0.25O2.55 and BaCo0.67Y0.33O2.55 with variable thickness showed high oxygen fluxes of 0.170.32 µmol/cm2/s at 950 °C. |
Address |
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Corporate Author |
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Thesis |
|
Publisher |
|
Place of Publication |
Amsterdam |
Editor |
|
Language |
|
Wos |
000261870800009 |
Publication Date |
2008-06-21 |
Series Editor |
|
Series Title |
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Abbreviated Series Title ![sorted by Abbreviated Series Title field, ascending order (up)](img/sort_asc.gif) |
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Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
0167-2738; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.354 |
Times cited |
9 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.354; 2008 IF: 2.425 |
Call Number |
UA @ lucian @ c:irua:75905 |
Serial |
3415 |
Permanent link to this record |
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|
|
Author |
Kurttepeli, M.; Deng, S.; Verbruggen, S.W.; Guzzinati, G.; Cott, D.J.; Lenaerts, S.; Verbeeck, J.; Van Tendeloo, G.; Detavernier, C.; Bals, S. |
Title |
Synthesis and characterization of photoreactive TiO2carbon nanosheet composites |
Type |
A1 Journal article |
Year |
2014 |
Publication |
The journal of physical chemistry: C : nanomaterials and interfaces |
Abbreviated Journal |
J Phys Chem C |
Volume |
118 |
Issue |
36 |
Pages |
21031-21037 |
Keywords |
A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT); Sustainable Energy, Air and Water Technology (DuEL) |
Abstract |
We report the atomic layer deposition of titanium dioxide on carbon nanosheet templates and investigate the effects of postdeposition annealing in a helium environment using different characterization techniques. The crystallization of the titanium dioxide coating upon annealing is observed using in situ X-ray diffraction. The (micro)structural characterization of the films is carried out by scanning electron microscopy and advanced transmission electron microscopy techniques. Our study shows that the annealing of the atomic layer deposition processed and carbon nanosheets templated titanium dioxide layers in helium environment resulting in the formation of a porous, nanocrystalline and photocatalytically active titanium dioxide-carbon nanosheet composite film. Such composites are suitable for photocatalysis and dye-sensitized solar cells applications. |
Address |
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Corporate Author |
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Thesis |
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Publisher |
|
Place of Publication |
Washington, D.C. |
Editor |
|
Language |
|
Wos |
000341619500034 |
Publication Date |
2014-08-23 |
Series Editor |
|
Series Title |
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Abbreviated Series Title ![sorted by Abbreviated Series Title field, ascending order (up)](img/sort_asc.gif) |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
1932-7447;1932-7455; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
4.536 |
Times cited |
9 |
Open Access |
OpenAccess |
Notes |
This research was funded by the Flemish research foundation FWO-Vlaanderen, by the European Research Council (Starting Grant No. 239865) and by the Special Research Fund BOF of Ghent University (GOA-01G01513). G.G, M.K., J.V., S.B., and G.V.T. acknowledge funding from the European Research Council under the seventh Framework Program (FP7), ERC Starting Grant No. 278510 VORTEX and No. 335078 COLOURATOMS. ECASJO;; ECASSara; (ROMEO:white; preprint:; postprint:restricted 12 months embargo; pdfversion:cannot); |
Approved |
Most recent IF: 4.536; 2014 IF: 4.772 |
Call Number |
UA @ lucian @ c:irua:119085 |
Serial |
3416 |
Permanent link to this record |
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|
|
Author |
El Shinawi, H.; Bertha, A.; Hadermann, J.; Herranz, T.; Santos, B.; Marco, J.F.; Berry, F.J.; Greaves, C. |
Title |
Synthesis and characterization of La1+xSr2-xCoMnO7-\delta (x=0,0.2; \delta=0,1) |
Type |
A1 Journal article |
Year |
2010 |
Publication |
Journal of solid state chemistry |
Abbreviated Journal |
J Solid State Chem |
Volume |
183 |
Issue |
6 |
Pages |
1347-1353 |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
Abstract |
The n=2 Ruddlesden-Popper phases LaSr(2)CoMnO(7) and La(1 2)Sr(1 8)CoMnO(7) have been synthesized by a sol-gel method The O6-type phases LaSr(2)CoMnO(6) and La(1 2)Sr(1 8)CoMnO(6) were produced by reduction of the 07 phases under a hydrogen atmosphere The materials crystallize in the tetragonal I4/mmm space group with no evidence of long-range cation order in the neutron and electron diffraction data Oxygen vacancies in the reduced materials are located primarily at the common apex of the double perovskite layers giving rise to square pyramidal coordination around cobalt and manganese ions. The oxidation states Co(3+)/Mn(4+) and Co(2+)/Mn(3+) predominate in the as-prepared and reduced materials, respectively The materials are spin glasses at low temperature and the dominant magnetic interactions change from ferro- to antiferromagnetic following reduction (C) 2010 Elsevier Inc All rights reserved |
Address |
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Corporate Author |
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Thesis |
|
Publisher |
|
Place of Publication |
London |
Editor |
|
Language |
|
Wos |
000278750100021 |
Publication Date |
2010-04-17 |
Series Editor |
|
Series Title |
|
Abbreviated Series Title ![sorted by Abbreviated Series Title field, ascending order (up)](img/sort_asc.gif) |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
0022-4596; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.299 |
Times cited |
5 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.299; 2010 IF: 2.261 |
Call Number |
UA @ lucian @ c:irua:99209 |
Serial |
3417 |
Permanent link to this record |
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|
|
Author |
Verlooy, P.L.H.; Robeyns, K.; van Meervelt, L.; Lebedev, O.I.; Van Tendeloo, G.; Martens, J.A.; Kirschhock, C.E.A. |
Title |
Synthesis and characterization of the new cyclosilicate hydrate (hexamethyleneimine)4.[Si8O16(OH)4].12H2O |
Type |
A1 Journal article |
Year |
2010 |
Publication |
Microporous and mesoporous materials: zeolites, clays, carbons and related materials |
Abbreviated Journal |
Micropor Mesopor Mat |
Volume |
130 |
Issue |
1/3 |
Pages |
14-20 |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
Abstract |
A new cyclosilicate hydrate with composition (C6H14N)4·[Si8O16(OH)4]·12H2O was crystallized and the structure determined by single-crystal X-ray diffraction. The structure, described by the tetragonal space group I41/a, with unit cell dimensions of a = 39.2150(2) Å and c = 14.1553(2) Å, contains columns of hydrogen-bonded cubic octamer silicate anions. The space between silicate columns holds hydrogen-bonded water and protonated hexamethyleneimine molecules compensating the negative charge of the silicate. The crystal water can be removed resulting in a rearrangement of the columns into orthorhombic symmetry. Removal of the organic moiety causes amorphisation. Flash evacuation results in a new microporous material with pore volumes typical of a zeolite. |
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
Amsterdam |
Editor |
|
Language |
|
Wos |
000275702600003 |
Publication Date |
2009-10-14 |
Series Editor |
|
Series Title |
|
Abbreviated Series Title ![sorted by Abbreviated Series Title field, ascending order (up)](img/sort_asc.gif) |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
1387-1811; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
3.615 |
Times cited |
5 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 3.615; 2010 IF: 3.220 |
Call Number |
UA @ lucian @ c:irua:82448 |
Serial |
3418 |
Permanent link to this record |
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|
|
Author |
Gillie, L.J.; Wright, A.J.; Hadermann, J.; Van Tendeloo, G.; Greaves, C. |
Title |
Synthesis and characterization of the reduced double-layer manganite Sr3Mn2O6+x |
Type |
A1 Journal article |
Year |
2003 |
Publication |
Journal of solid state chemistry |
Abbreviated Journal |
J Solid State Chem |
Volume |
175 |
Issue |
|
Pages |
188-196 |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
Abstract |
|
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
London |
Editor |
|
Language |
|
Wos |
000186126600007 |
Publication Date |
2003-09-03 |
Series Editor |
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Series Title |
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Abbreviated Series Title ![sorted by Abbreviated Series Title field, ascending order (up)](img/sort_asc.gif) |
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Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
0022-4596; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.299 |
Times cited |
18 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.299; 2003 IF: 1.413 |
Call Number |
UA @ lucian @ c:irua:42713 |
Serial |
3419 |
Permanent link to this record |
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|
|
Author |
Gillie, L.J.; Wright, A.J.; Hadermann, J.; Van Tendeloo, G.; Greaves, C. |
Title |
Synthesis and characterization of the reduced single-layer manganite Sr2MnO3.5+x |
Type |
A1 Journal article |
Year |
2002 |
Publication |
Journal of solid state chemistry |
Abbreviated Journal |
J Solid State Chem |
Volume |
167 |
Issue |
|
Pages |
145-151 |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
Abstract |
|
Address |
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Corporate Author |
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Thesis |
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Publisher |
|
Place of Publication |
London |
Editor |
|
Language |
|
Wos |
000177915800018 |
Publication Date |
2002-10-07 |
Series Editor |
|
Series Title |
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Abbreviated Series Title ![sorted by Abbreviated Series Title field, ascending order (up)](img/sort_asc.gif) |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
0022-4596; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.299 |
Times cited |
25 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.299; 2002 IF: 1.671 |
Call Number |
UA @ lucian @ c:irua:40347 |
Serial |
3420 |
Permanent link to this record |
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|
|
Author |
Veith, G.M.; Lobanov, M.V.; Emge, T.J.; Greenblatt, M.; Croft, M.; Stowasser, F.; Hadermann, J.; Van Tendeloo, G. |
Title |
Synthesis and charactreization of the new Ln(2)FeMoO(7) (Ln = Y, Dy, Ho) compounds |
Type |
A1 Journal article |
Year |
2004 |
Publication |
Journal of materials chemistry |
Abbreviated Journal |
J Mater Chem |
Volume |
14 |
Issue |
|
Pages |
1623-1630 |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
Abstract |
|
Address |
|
Corporate Author |
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Thesis |
|
Publisher |
|
Place of Publication |
Cambridge |
Editor |
|
Language |
|
Wos |
000221507200021 |
Publication Date |
2004-05-14 |
Series Editor |
|
Series Title |
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Abbreviated Series Title ![sorted by Abbreviated Series Title field, ascending order (up)](img/sort_asc.gif) |
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Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
0959-9428;1364-5501; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
|
Times cited |
17 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: NA |
Call Number |
UA @ lucian @ c:irua:47319 |
Serial |
3421 |
Permanent link to this record |
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|
|
Author |
Abakumov, A.M.; Hadermann, J.; Rozova, M.G.; Pavljuk, B.P.; Antipov, E.V.; Lebedev, O.I.; Van Tendeloo, G. |
Title |
Synthesis and crystal structure of a new complex oxyfluoride La0.813Sr0.187Cu(o,F)3-\delta |
Type |
A1 Journal article |
Year |
2000 |
Publication |
Journal of solid state cemistry |
Abbreviated Journal |
J Solid State Chem |
Volume |
149 |
Issue |
|
Pages |
189-196 |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
Abstract |
|
Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
|
Editor |
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Language |
|
Wos |
000085229200027 |
Publication Date |
2002-09-18 |
Series Editor |
|
Series Title |
|
Abbreviated Series Title ![sorted by Abbreviated Series Title field, ascending order (up)](img/sort_asc.gif) |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
0022-4596; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.299 |
Times cited |
8 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.299; 2000 IF: 1.527 |
Call Number |
UA @ lucian @ c:irua:29280 |
Serial |
3422 |
Permanent link to this record |
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Author |
Zalfani, M.; van der Schueren, B.; Hu, Z.-Y.; Rooke, J.C.; Bourguiga, R.; Wu, M.; Li, Y.; Van Tendeloo, G.; Su, B.-L. |
Title |
Novel 3DOM BiVO4/TiO2nanocomposites for highly enhanced photocatalytic activity |
Type |
A1 Journal article |
Year |
2015 |
Publication |
Journal of materials chemistry A : materials for energy and sustainability |
Abbreviated Journal |
J Mater Chem A |
Volume |
3 |
Issue |
3 |
Pages |
21244-21256 |
Keywords |
A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT) |
Abstract |
Novel 3DOM BiVO4/TiO2 nanocomposites with intimate contact were for the first time synthesized by a hydrothermal method in order to elucidate their visible-light-driven photocatalytic performances. BiVO4 nanoparticles and 3DOM TiO2 inverse opal were fabricated respectively. These materials were characterized by XRD, XPS, SEM, TEM, N2 adsorption–desorption and UV-vis diffuse (UV-vis) and photoluminescence spectroscopies. As references for comparison, a physical mixture of BiVO4 nanoparticles and 3DOM TiO2 inverse opal powder (0.08 : 1), and a BiVO4/P25 TiO2 (0.08 : 1) nanocomposite made also by the hydrothermal method were prepared. The photocatalytic performance of all the prepared materials was evaluated by the degradation of rhodamine B (RhB) as a model pollutant molecule under visible light irradiation. The highly ordered 3D macroporous inverse opal structure can provide more active surface areas and increased mass transfer because of its highly accessible 3D porosity. The results show that 3DOM BiVO4/TiO2 nanocomposites possess a highly prolonged lifetime and increased separation of visible light generated charges and extraordinarily high photocatalytic activity. Owing to the intimate contact between BiVO4 and large surface area 3DOM TiO2, the photogenerated high energy charges can be easily transferred from BiVO4 to the 3DOM TiO2 support. BiVO4 nanoparticles in the 3DOM TiO2 inverse opal structure act thus as a sensitizer to absorb visible light and to transfer efficiently high energy electrons to TiO2 to ensure long lifetime of the photogenerated charges and keep them well separated, owing to the direct band gap of BiVO4 of 2.4 eV, favourably positioned band edges, very low recombination rate of electron–hole pairs and stability when coupled with photocatalysts, explaining the extraordinarily high photocatalytic performance of 3DOM BiVO4/TiO2 nanocomposites. It is found that larger the amount of BiVO4 in the nanocomposite, longer the duration of photogenerated charge separation and higher the photocatalytic activity. This work can shed light on the development of novel visible light responsive nanomaterials for efficient solar energy utilisation by the intimate combination of an inorganic light sensitizing nanoparticle with an inverse opal structure with high diffusion efficiency and high accessible surface area. |
Address |
|
Corporate Author |
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Thesis |
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Publisher |
|
Place of Publication |
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Editor |
|
Language |
|
Wos |
000363163200049 |
Publication Date |
2015-09-08 |
Series Editor |
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Series Title |
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Abbreviated Series Title ![sorted by Abbreviated Series Title field, ascending order (up)](img/sort_asc.gif) |
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Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
2050-7488;2050-7496; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
8.867 |
Times cited |
88 |
Open Access |
|
Notes |
This work was realized with the financial support of the Belgian FNRS (Fonds National de la Recherche Scientifique). This research used resources of the Electron Microscopy Service located at the University of Namur. This Service is a member of the “Plateforme Technologique Morphologie – Imagerie”. The XPS analyses were made in the LISE, Department of Physics of the University of Namur thanks to Dr P. Louette. This work was also supported by Changjiang Scholars and the Innovative Research Team (IRT1169) of the Ministry of Education of the People's Republic of China. B. L. Su acknowledges the Chinese Central Government for an “Expert of the State” position in the Program of the “Thousand Talents” and a Clare Hall Life Membership at the Clare Hall and the financial support of the Department of Chemistry, University of Cambridge. G. Van Tendeloo and Z. Y. Hu acknowledge support from the EC Framework 7 program ESTEEM2 (Reference 312483).; esteem2_jra4 |
Approved |
Most recent IF: 8.867; 2015 IF: 7.443 |
Call Number |
c:irua:129476 c:irua:129476 |
Serial |
3951 |
Permanent link to this record |
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|
Author |
Shpanchenko, R.V.; Tsirlin, A.A.; Hadermann, J.; Antipov, E.V. |
Title |
Synthesis and crystal structure of new titanyl phosphate Sr2TiO(PO4)2 |
Type |
A1 Journal article |
Year |
2008 |
Publication |
Russian chemical bulletin |
Abbreviated Journal |
Russ Chem B+ |
Volume |
57 |
Issue |
3 |
Pages |
552-556 |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
Abstract |
New strontium titanyl phosphate Sr2TiO(PO4)2 (1) was synthesized and characterized by X-ray powder diffraction, electron diffraction, high-resolution electron microscopy, and band structure calculations. Titanyl phosphate 1 is isostructural with vanadyl phosphate Sr2VO(PO4)2 and has a layered structure. The titanium atoms are shifted from the centers of the TiO6 octahedra and form short (1.74 Å) titanyl bonds. The structure of 1 is an unusual example of the disordered orientation of the chains formed by TiO6 octahedra in complex titanium phosphates. |
Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Editor |
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Language |
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Wos |
000263566900015 |
Publication Date |
2009-03-06 |
Series Editor |
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Series Title |
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Abbreviated Series Title ![sorted by Abbreviated Series Title field, ascending order (up)](img/sort_asc.gif) |
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Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
1066-5285;1573-9171; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
0.529 |
Times cited |
2 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 0.529; 2008 IF: 0.469 |
Call Number |
UA @ lucian @ c:irua:73712 |
Serial |
3423 |
Permanent link to this record |
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|
Author |
Abakumov, A.M.; Rossell, M.D.; Seryakov, S.A.; Rozova, M.G.; Markina, M.M.; Van Tendeloo, G.; Antipov, E.V. |
Title |
Synthesis and crystal structure of novel CaRMnSnO6(R = La, Pr, Nd, Sm-Dy) double perovskites |
Type |
A1 Journal article |
Year |
2005 |
Publication |
Journal of materials chemistry |
Abbreviated Journal |
J Mater Chem |
Volume |
15 |
Issue |
46 |
Pages |
4899-4905 |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
Abstract |
|
Address |
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Corporate Author |
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Thesis |
|
Publisher |
|
Place of Publication |
Cambridge |
Editor |
|
Language |
|
Wos |
000233439300005 |
Publication Date |
2005-10-17 |
Series Editor |
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Series Title |
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Abbreviated Series Title ![sorted by Abbreviated Series Title field, ascending order (up)](img/sort_asc.gif) |
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Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
0959-9428;1364-5501; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
|
Times cited |
8 |
Open Access |
|
Notes |
Iap V-1 |
Approved |
Most recent IF: NA |
Call Number |
UA @ lucian @ c:irua:56069 |
Serial |
3424 |
Permanent link to this record |
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|
|
Author |
Abakumov, A.M.; Rozova, M.G.; Pavlyuk, B.P.; Lobanov, M.V.; Antipov, E.V.; Lebedev, O.I.; Van Tendeloo, G.; Sheptyakov, D.V.; Balagurov, A.M.; Bourée, F. |
Title |
Synthesis and crystal structure of novel layered manganese oxide Ca2MnGaO5+\delta |
Type |
A1 Journal article |
Year |
2001 |
Publication |
Journal of solid state chemistry |
Abbreviated Journal |
J Solid State Chem |
Volume |
158 |
Issue |
1 |
Pages |
100-111 |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
Abstract |
|
Address |
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Corporate Author |
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Thesis |
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Publisher |
|
Place of Publication |
London |
Editor |
|
Language |
|
Wos |
000168441500015 |
Publication Date |
2002-09-18 |
Series Editor |
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Series Title |
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Abbreviated Series Title ![sorted by Abbreviated Series Title field, ascending order (up)](img/sort_asc.gif) |
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Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
0022-4596; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.299 |
Times cited |
48 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.299; 2001 IF: 1.614 |
Call Number |
UA @ lucian @ c:irua:54707 |
Serial |
3425 |
Permanent link to this record |
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|
Author |
Kazin, P.E.; Abakumov, A.M.; Zaytsev, D.D.; Tretyakov, Y.D.; Khasanova, N.R.; Van Tendeloo, G.; Jansen, M. |
Title |
Synthesis and crystal structure of Sr2ScBiO6 |
Type |
A1 Journal article |
Year |
2001 |
Publication |
Journal of solid state chemistry |
Abbreviated Journal |
J Solid State Chem |
Volume |
162 |
Issue |
1 |
Pages |
142-147 |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
Abstract |
|
Address |
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Corporate Author |
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Thesis |
|
Publisher |
|
Place of Publication |
London |
Editor |
|
Language |
|
Wos |
000172586400019 |
Publication Date |
2002-09-18 |
Series Editor |
|
Series Title |
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Abbreviated Series Title ![sorted by Abbreviated Series Title field, ascending order (up)](img/sort_asc.gif) |
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Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
0022-4596; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.299 |
Times cited |
3 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.299; 2001 IF: 1.614 |
Call Number |
UA @ lucian @ c:irua:54710 |
Serial |
3426 |
Permanent link to this record |
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|
Author |
Kalyuzhnaya, A.S.; Abakumov, A.M.; Rozova, M.G.; d' Hondt, H.; Hadermann, J.; Antipov, E.V. |
Title |
Synthesis and crystal structure of the new complex oxide Ca7Mn2.14Ga5.86O17.93 |
Type |
A1 Journal article |
Year |
2010 |
Publication |
Russian chemical bulletin |
Abbreviated Journal |
Russ Chem B+ |
Volume |
59 |
Issue |
4 |
Pages |
706-711 |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
Abstract |
The complex oxide Ca7Mn2.14Ga5.86O17.93 was synthesized by the solid-state reaction in a sealed evacuated quartz tube at 1000 °C. Its crystal structure was determined by electron diffraction and X-ray powder diffraction. The structure can be represented as a tetrahedral framework, viz., the polyanion [(Mn0.285Ga0.715)15O29.86]19- stabilized by the incorporated cation [Ca14GaO6]19+. The polycation consists of the GaO6 octahedra surrounded by the Ca atoms, which are arranged to form a cube capped at all places. The tetrahedral framework is partially disordered due to the presence of tetrahedra with two possible orientations in the positions (0, 0, 0) and (x, x, x) with x ≈ 0.15 and 0.17. The relationship between the Ca7Mn2.14Ga5.86O17.93 structures and related ordered phases with the symmetry F23, as well as the influence of the oxygen content on the ordering in the tetrahedral framework, are discussed. |
Address |
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Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Editor |
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Language |
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Wos |
000283302000006 |
Publication Date |
2010-10-20 |
Series Editor |
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Series Title |
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Abbreviated Series Title ![sorted by Abbreviated Series Title field, ascending order (up)](img/sort_asc.gif) |
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Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
1066-5285;1573-9171; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
0.529 |
Times cited |
1 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 0.529; 2010 IF: 0.629 |
Call Number |
UA @ lucian @ c:irua:85675 |
Serial |
3427 |
Permanent link to this record |
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Author |
Abakumov, A.M.; Rozova, M.G.; Chizhov, P.S.; Antipov, E.V.; Hadermann, J.; Van Tendeloo, G. |
Title |
Synthesis and crystal structure of the novel Pb5Sb2MnO11 compound |
Type |
A1 Journal article |
Year |
2004 |
Publication |
Journal of solid state chemistry |
Abbreviated Journal |
J Solid State Chem |
Volume |
177 |
Issue |
|
Pages |
2855-2861 |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
Abstract |
|
Address |
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Corporate Author |
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Thesis |
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Publisher |
|
Place of Publication |
London |
Editor |
|
Language |
|
Wos |
000223145500030 |
Publication Date |
2004-08-04 |
Series Editor |
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Series Title |
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Abbreviated Series Title ![sorted by Abbreviated Series Title field, ascending order (up)](img/sort_asc.gif) |
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Series Volume |
|
Series Issue |
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Edition |
|
ISSN |
0022-4596; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.299 |
Times cited |
3 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.299; 2004 IF: 1.815 |
Call Number |
UA @ lucian @ c:irua:47316 |
Serial |
3428 |
Permanent link to this record |
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|
Author |
Panin, R.V.; Khasanova, N.R.; Abakumov, A.M.; Antipov, E.V.; Van Tendeloo, G.; Schnelle, W. |
Title |
Synthesis and crystal structure of the palladium oxides NaPd3O4, Na2PdO3 and K3Pd2O4 |
Type |
A1 Journal article |
Year |
2007 |
Publication |
Journal of solid state chemistry |
Abbreviated Journal |
J Solid State Chem |
Volume |
180 |
Issue |
5 |
Pages |
1566-1574 |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
Abstract |
|
Address |
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Corporate Author |
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Thesis |
|
Publisher |
|
Place of Publication |
London |
Editor |
|
Language |
|
Wos |
000246892800007 |
Publication Date |
2007-03-13 |
Series Editor |
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Series Title |
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Abbreviated Series Title ![sorted by Abbreviated Series Title field, ascending order (up)](img/sort_asc.gif) |
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Series Volume |
|
Series Issue |
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Edition |
|
ISSN |
0022-4596; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.299 |
Times cited |
24 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.299; 2007 IF: 2.149 |
Call Number |
UA @ lucian @ c:irua:64740 |
Serial |
3429 |
Permanent link to this record |
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Author |
Hadermann, J.; Abakumov, A.M.; d' Hondt, H.; Kalyuzhnaya, A.S.; Rozova, M.G.; Markina, M.M.; Mikheev, M.G.; Tristan, N.; Klingeler, R.; Büchner, B.; Antipov, E.V. |
Title |
Synthesis and crystal structure of the Sr2Al1.07Mn0.93O5 brownmillerite |
Type |
A1 Journal article |
Year |
2007 |
Publication |
Journal of materials chemistry |
Abbreviated Journal |
J Mater Chem |
Volume |
17 |
Issue |
7 |
Pages |
692-698 |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
Abstract |
|
Address |
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Corporate Author |
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Thesis |
|
Publisher |
|
Place of Publication |
Cambridge |
Editor |
|
Language |
|
Wos |
000244085100016 |
Publication Date |
2006-12-15 |
Series Editor |
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Series Title |
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Abbreviated Series Title ![sorted by Abbreviated Series Title field, ascending order (up)](img/sort_asc.gif) |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
0959-9428;1364-5501; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
|
Times cited |
31 |
Open Access |
|
Notes |
Iap V-1 |
Approved |
Most recent IF: NA |
Call Number |
UA @ lucian @ c:irua:62061 |
Serial |
3430 |
Permanent link to this record |
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|
|
Author |
Alekseeva, A.M.; Abakumov, A.M.; Rozova, M.G.; Antipov, E.V.; Hadermann, J. |
Title |
Synthesis and crystal structure of the Sr2MnGa(O,F)6 oxyfluorides |
Type |
A1 Journal article |
Year |
2004 |
Publication |
Journal of solid state chemistry |
Abbreviated Journal |
J Solid State Chem |
Volume |
177 |
Issue |
|
Pages |
731-738 |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
Abstract |
|
Address |
|
Corporate Author |
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Thesis |
|
Publisher |
|
Place of Publication |
London |
Editor |
|
Language |
|
Wos |
000220513000016 |
Publication Date |
2003-10-28 |
Series Editor |
|
Series Title |
|
Abbreviated Series Title ![sorted by Abbreviated Series Title field, ascending order (up)](img/sort_asc.gif) |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
0022-4596; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.299 |
Times cited |
23 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.299; 2004 IF: 1.815 |
Call Number |
UA @ lucian @ c:irua:43874 |
Serial |
3431 |
Permanent link to this record |
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|
|
Author |
Lobanov, M.V.; Abakumov, A.M.; Sidorova, A.V.; Rozova, M.G.; D'yachenko, O.G.; Antipov, E.V.; Hadermann, J.; Van Tendeloo, G. |
Title |
Synthesis and investigation of novel Mn-based oxyfluoride Sr2Mn2O5-xF1+x |
Type |
A1 Journal article |
Year |
2002 |
Publication |
Solid state sciences |
Abbreviated Journal |
Solid State Sci |
Volume |
4 |
Issue |
|
Pages |
19-22 |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
Abstract |
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Address |
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Corporate Author |
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Thesis |
|
Publisher |
|
Place of Publication |
Amsterdam |
Editor |
|
Language |
|
Wos |
000174141100004 |
Publication Date |
2002-07-25 |
Series Editor |
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Series Title |
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Abbreviated Series Title ![sorted by Abbreviated Series Title field, ascending order (up)](img/sort_asc.gif) |
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Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
1293-2558; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
1.811 |
Times cited |
21 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 1.811; 2002 IF: 1.667 |
Call Number |
UA @ lucian @ c:irua:40346 |
Serial |
3432 |
Permanent link to this record |
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|
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Author |
Bharathy, M.; Gemmill, W.R.; Fox, A.H.; Darriet, J.; Smith, M.D.; Hadermann, J.; Remy, M.S.; zur Loye, H.-C. |
Title |
Synthesis and magnetic properties of rare earth ruthenates, Ln5Ru2O12 (Ln=Pr, Nd, SmTb) |
Type |
A1 Journal article |
Year |
2009 |
Publication |
Journal of solid state chemistry |
Abbreviated Journal |
J Solid State Chem |
Volume |
182 |
Issue |
5 |
Pages |
1164-1170 |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
Abstract |
Single crystals of Ln5Ru2O12 (Ln=Pr, Nd, SmTb) were grown out of either NaOH or KOH fluxes in sealed silver tubes. The crystals of all the phases were observed to be twinned as confirmed by TEM studies. The series crystallize in the C2/m monoclinic system with lattice parameters, a=12.4049(4)12.7621(6) Å, b=5.8414(2)5.9488(3) Å, c=7.3489(2)7.6424(4) Å, β=107.425(3)107.432(2)° and Z=2. The crystal structure is isotypic with the defect/disorder model of Ln5Re2O12 (Ln = Y, Gd) and consists of one dimensional edge shared RuO6 octahedral chains separated by a two dimensional LnOx polyhedral framework. Magnetic measurements indicate paramagnetic and antiferromagnetic behavior for Ln=Nd, SmGd and Ln=Tb, respectively. |
Address |
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Corporate Author |
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Thesis |
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Publisher |
|
Place of Publication |
London |
Editor |
|
Language |
|
Wos |
000265893700027 |
Publication Date |
2009-02-22 |
Series Editor |
|
Series Title |
|
Abbreviated Series Title ![sorted by Abbreviated Series Title field, ascending order (up)](img/sort_asc.gif) |
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Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
0022-4596; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
2.299 |
Times cited |
4 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 2.299; 2009 IF: 2.340 |
Call Number |
UA @ lucian @ c:irua:77052 |
Serial |
3433 |
Permanent link to this record |
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|
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Author |
Retuerto, M.; Emge, T.; Hadermann, J.; Stephens, P.W.; Li, M.R.; Yin, Z.P.; Croft, M.; Ignatov, A.; Zhang, S.J.; Yuan, Z.; Jin, C.; Simonson, J.W.; Aronson, M.C.; Pan, A.; Basov, D.N.; Kotliar, G.; Greenblatt, M.; |
Title |
Synthesis and properties of charge-ordered thallium halide perovskites, CsTl0.5+Tl0.53+X3 (X = F or Cl) : theoretical precursors for superconductivity? |
Type |
A1 Journal article |
Year |
2013 |
Publication |
Chemistry of materials |
Abbreviated Journal |
Chem Mater |
Volume |
25 |
Issue |
20 |
Pages |
4071-4079 |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
Abstract |
Recently, CsTlCl3 and CsTlF3 perovskites were theoretically predicted to be potential superconductors if they were optimally doped. The syntheses of these two compounds together with a complete characterization of the samples are reported. CsTlCl3 was obtained as orange crystals in two different polymorphs: a tetragonal phase (I4/m) and a cubic phase (Fm (3) over barm). CsTlF3 was formed as a light brown powder, and also as a double cubic perovskite (Fm (3) over barm). In all three CsTlX3 phases, Tl+ and Tl3+ were located in two different crystallographic positions that accommodate their different bond lengths. In CsTlCl3, some Tl vacancies were found in the Tl+ position. The charge ordering between Tl+ and Tl3+ was confirmed by X-ray absorption and Raman spectroscopy. The Raman spectroscopy of CsTlCl3 at high pressure (58 GPa) did not indicate any phase transition to a possible single Tl2+ state. However, the highly insulating material became less resistive with an increasing high pressure, while it underwent a change in its optical properties, from transparent to deeply opaque red, indicative of a decrease in the magnitude of the band gap. The theoretical design and experimental validation of the existence of CsTlF3 and CsTlCl3 cubic perovskites are the necessary first steps in confirming the theoretical prediction of superconductivity in these materials. |
Address |
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Corporate Author |
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Thesis |
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Publisher |
|
Place of Publication |
Washington, D.C. |
Editor |
|
Language |
|
Wos |
000326209200017 |
Publication Date |
2013-09-18 |
Series Editor |
|
Series Title |
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Abbreviated Series Title ![sorted by Abbreviated Series Title field, ascending order (up)](img/sort_asc.gif) |
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Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
0897-4756;1520-5002; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
9.466 |
Times cited |
28 |
Open Access |
|
Notes |
|
Approved |
Most recent IF: 9.466; 2013 IF: 8.535 |
Call Number |
UA @ lucian @ c:irua:112248 |
Serial |
3434 |
Permanent link to this record |
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|
|
Author |
Parsons, T.G.; d' Hondt, H.; Hadermann, J.; Hayward, M.A. |
Title |
Synthesis and structural characterization of La1-xAxMnO2.5 (A = Ba, Sr, Ca) phases: mapping the variants of the brownmillerite structure |
Type |
A1 Journal article |
Year |
2009 |
Publication |
Chemistry of materials |
Abbreviated Journal |
Chem Mater |
Volume |
21 |
Issue |
22 |
Pages |
5527-5538 |
Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
Abstract |
Analysis of the structural parameters of phases that adopt brownmillerite-type structures suggests the distribution of the different complex ordering schemes adopted within this structure type can be rationalized by considering both the size of the separation between the tetrahedral layers and the tetrahedral chain distortion angle. A systematic study using structural data obtained from La1−xAxMnO2,5 (A = Ba, Sr, Ca,) phases, prepared by the topotactic reduction of the analogous La1−xAxMnO3 perovskite phases, was performed to investigate this relationship. By manipulating the A-cation composition, both the tetrahedral layer separation and tetrahedral chain distortion angle in the La1−xAxMnO2,5 phases were controlled and from the data obtained a ¡°structure map¡± of the different brownmillerite variants was plotted as a function of these structural parameters. This map has been extended to include a wide range of reported brownmillerite phases showing the structural ideas presented are widely applicable. The complete structural characterization of La1−xAxMnO2,5 0.1 ¡Ü x ¡Ü 0.33, A = Ba; 0.15 ¡Ü x ¡Ü 0.5 A = Sr, and 0.22 ¡Ü x ¡Ü 0.5 A = Ca is described and includes compositions which exhibit complex intralayer ordered structures and Mn2+/Mn3+ charge ordering. |
Address |
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Corporate Author |
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Thesis |
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Publisher |
|
Place of Publication |
Washington, D.C. |
Editor |
|
Language |
|
Wos |
000271756400021 |
Publication Date |
2009-10-29 |
Series Editor |
|
Series Title |
|
Abbreviated Series Title ![sorted by Abbreviated Series Title field, ascending order (up)](img/sort_asc.gif) |
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Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
0897-4756;1520-5002; |
ISBN |
|
Additional Links |
UA library record; WoS full record; WoS citing articles |
Impact Factor |
9.466 |
Times cited |
60 |
Open Access |
|
Notes |
Iap Vi |
Approved |
Most recent IF: 9.466; 2009 IF: 5.368 |
Call Number |
UA @ lucian @ c:irua:79935 |
Serial |
3435 |
Permanent link to this record |